https://github.com/gaborcsardi/fswatch

Watch a File or Directory for Changes
https://github.com/gaborcsardi/fswatch

Last synced: 13 days ago
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Watch a File or Directory for Changes

• Host: GitHub
• URL: https://github.com/gaborcsardi/fswatch
• Owner: gaborcsardi
• Created: 2016-06-14T22:44:46.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2016-06-14T23:06:07.000Z (over 8 years ago)
• Last Synced: 2024-11-05T03:42:13.439Z (2 months ago)
• Language: R
• Size: 7.81 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        

# fswatch

> Watch a File or Directory for Changes

[![Linux Build Status](https://travis-ci.org/gaborcsardi/fswatch.svg?branch=master)](https://travis-ci.org/gaborcsardi/fswatch)

[![Windows Build status](https://ci.appveyor.com/api/projects/status/github/gaborcsardi/fswatch?svg=true)](https://ci.appveyor.com/project/gaborcsardi/fswatch)

[![](http://www.r-pkg.org/badges/version/fswatch)](http://www.r-pkg.org/pkg/fswatch)

[![CRAN RStudio mirror downloads](http://cranlogs.r-pkg.org/badges/fswatch)](http://www.r-pkg.org/pkg/fswatch)

Get notification is a file or any file in a directory changes. It uses the

fswatch tool (see https://github.com/emcrisostomo/fswatch) and works on

major platforms.

## Installation

Make sure you install the standalone `fswatch` program first, from

https://github.com/emcrisostomo/fswatch

Then install the R package as:

```r

source("https://install-github.me/gaborcsardi/fswatch")

```

## Usage

```r

library(fswatch)

```

Create a directory and start watching it. The callback will simply print

the file(s) that has changed.

```r

tmp <- tempfile()

dir.create(tmp)

id <- fswatch(tmp, callback = function(f) print(f))

```

Now modify the directory to see a notification.

```r

cat("hello", file = file.path(tmp, "foobar"))

```

```

#> [1] "/private/var/folders/ws/7rmdm_cn2pd8l1c3lqyycv0c0000gn/T/Rtmpgj5lSY/file12c557f73ef61/foobar"

```

Removing the file will also trigger a notification.

```r

file.remove(file.path(tmp, "foobar"))

```

```

#> [1] "/private/var/folders/ws/7rmdm_cn2pd8l1c3lqyycv0c0000gn/T/Rtmpgj5lSY/file12c557f73ef61/foobar"

```

## License

GPL-3 © Gábor Csárdi